Home / 75,931.63-104,785.65-42,397.63

Finding the Fourth Proportional to 75,931.63, 104,785.65 and 42,397.63

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Solution

The fourth proportional to 75,931.63, 104,785.65 and 42,397.63 is: 58,508.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,931.63 : 104,785.65 = 42,397.63 : x
  2. Step 2: Convert to fraction form
    75,931.63/104,785.65 = 42,397.63/x
  3. Step 3: Cross multiply
    75,931.63x = 104,785.65 × 42,397.63
  4. Step 4: Simplify right side
    75,931.63x = 4,442,662,956.05
  5. Step 5: Solve for x
    x = 4,442,662,956.05/75,931.63
  6. Step 6: Final answer
    x = 58,508.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.